The Avro 679 Manchester was a British twin-engine heavy bomber developed and manufactured by the Avro aircraft company in the United Kingdom. While not being built in great numbers, it was the forerun
Avro Manchester Mk.1A 'L7486' (with extended tail fins)
Avro Manchester Mk I (note additional central tail fin)
The forward section of a Manchester Mark I at Waddington, Lincolnshire, showing the nose with the bomb-aimer's window, the forward gun-turret and the cockpit, September 1941
The Handley Page Halifax is a British Royal Air Force four-engined heavy bomber of the Second World War. It was developed by Handley Page to the same specification as the contemporary twin-engine Avro
Avro Manchester
…Ministry's Specification P.13/36. This was the same specification to which Handley Page had also produced their initial design for what would become the Halifax bomber. Issued in May 1936, Specification P.13/36 called for a twin-engine monoplane "medium bomber" for "worldwide use", which was to be capable of…
Handley Page Halifax B.III
Personnel in the Handley Page drawing office working on the Halifax bomber
Halifax bombers being built at the Handley Page factory at Cricklewood, 1942
Aerodynamic model of the Halifax undergoing wind tunnel testing, 1942